{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "PFOS , perfluorooctanoic acid ( PFOA ) and PFOSA induced a concentration dependent increase in ROS formation with EC ( 50 ) - values of 27 +/- 9 . 0 , 25 +/- 11 and 57 +/- 19 mu M respectively ."}
{"Chemical": ["PFOS", "perfluorooctanoic acid", "PFOA", "PFOSA"]}